Sash-fastener



(Hommel.)

R. A. GRIFFIN.

SASH FASTENBR.

No.565,743. Y Patented Aug. 11, 1896.

NiTnD- STATES- -PATENT Prien.,

RICHARD AUGUSTUS GRIFFIN, OF NASHVILLE, TENNESSEE.

SASH-FASTEN ER.

SPECIFICATION forming part of Letters Patent No. 565,743, dated August 11, 1896i. Application filed May 4, 1896. Serial N0. 590,149. (No model.)

To all whom it 'Indy/concern.'

Be it known that I, RICHARD AUGUSTUS RIFFIN, residing at Nashville, Davidson county, State of Tennessee, have invented a new and useful Improvement in Sash-Locks, of which the following is a specification.

My inventionhas for its object the production of a sash-lock for windows which will be easy of operation and strong and durable in construction. Y

It consists of rack-bars arranged transversely of a window-frame on each side of a toothed wheel, each bar having an inner toothed edge designed to engage the said wheel, whereby the bars are moved in opposite directions, said bars being provided with clamps projecting therefrom for binding the outer and inner sides of the upper and lower sashes, respectively.

It further consists in improved means for operating the rack-bars and clamps, the said means being arranged so as not to interfere in any way with the curtains or drapery of the windows.

The invention will hereinafter be fully set forth, and particularly pointed out in the claims.

In the accompanying drawings, Figure l is i a view in perspective of a portion of a window-frame provided with my improvement. Fig. 2 is a front view of the box or Casin g of my device with the top removed. Fig. 3 is a horizontal section on line 3 3, Fig. 2.

Referring to the drawings, A designates a window-jamb of ordinary construction, having vertical guides a d a2 for the sashes. A transverse recess a3 is cut in said jamb, extending entirely across the same, and the guides a and a also contain cut-away portions o# a5, respectively, as shown in Fig. 3. The recess CL4 is approximately rectangular with a horizontal additi nal recess a6 formed therewith. The recess 5 in the opposite inner guide a' has an inclined upper wall ai. The said recesses are adapted to receive the ends of the box or casing B and the bindingclamps d and d, which will hereinafter be described in detail.

`B is a box or casing, of brass or other durable material, nearly rectangular in shape and having sides formed integral therewith. Coincident raised portions b b extend longitudinally of said box or casing B from opposite sides h h2 to a point near the center thereof, forming with said sides practically upper and lower compartments h3 and D4. The side b iits snuglyin the lower portion of the recess a4, while at its opposite end it is cut away, as at b5, said cut-away portion being extended entirely through the jamlo A. The side b2 of the compartment h4 iits against the guide a', its other side being open and projecting into the upper portion CLG of the recess dt The top and bottom of the box or casing B are provided with recesses h6, de-

i signed to receive lugs projecting from the lid 297 to hold the same in position.

C C designate two rack-bars of special construction and arrangement.

Each bar is provided with teeth c2 on one edgeextending from a point near the center thereof to its outer end, where stops c3 are formed, and further provided with forwardlyprojecting clamps d d", formed integral therewith. VThe said bars are designed to be moved longitudinally in the compartments h3 and h4 in opposite directions through the agency of Va cog-wheel D, and the clamps to work in and out of the recesses in the j amb and the guides. The said wheel D is pivoted at d2 by a bolt d4, inserted through coincident holes d5' in the lid and back of the box or casing B at the space between the ends of the longitudinallyextending portions b b, so that the rack-bars C C' are on each side of said wheel, and the teeth cl3 thereof intermesh with the teeth of the said bars. 'Thus a movement in one direction of the bar C will cause a movement in the opposite direction of the bar C.

In addition to the clamp d the bar C is provided with a rear block dx, forming with said clamp a continuous piece, and which is received in the recess h5. Through said block is a transverse screw-hole d5, which extends some distance into the j amb A, and also in an opposite direction through the side of said jainb adjacent the room. In said transverse hole d5 is designed to work an operating-screw E, the end d6 thereof being projected through the inner side of the jamb A, at which point a thumb-plate F is attached thereto. This thumb-plate folds down in a recess f, formed in the jamb, so that it is out of the way of curtains or other-fixtures in the room.

IOD

The operation of my device is as follows: To lock the sashes at any desired point, the screw E is turned by the thumb-plate F, so that it works in the block CZX and forces forward the raclbar C and the clamp d thereof. This Will result in a corresponding movement of the bar C and the clamp d in an opposite direction by means of the cogavheel D, and both clamps will be forced into engagement with the sides of the s'ashes at the same time, securely locking them. The box or casingB is preferably placed in the jamb behind the meeting-rails of the sashes, so that it Will be operative, no matter what the elevation of the same may be. When the upper and lower sashes are of thicknesses differing more than one-eighth of an inch, the sides of the casing are beveled, and the transverse recess in the jamb is cut of corresponding form, so as to do away with the necessity of fastening` the casingP and allow the device to accommodate itself to both the thick and the thin sashes.

It will be observed that I have provided a sash-fastener which is extremely simple in operation and durable in construction, and which can be adjusted to any style of window.

By means of the construction and arrangement of parts I have shown by operatingthe thumb-plate F both the sashes are locked simultaneously, and when not in use the said thumb-plate can be folded back out of the way.

I claim as my inventionl. A sash-fastener, comprising,` a boX or casing` fitting in a transverse recess of the window-frame, rack-bars inclosed in said box or casing having clamps on their opposing ends, a cog-wheel pivotally secured in said box or casing between said rack-bars, arranged to move said bars simultaneously in opposite directions, and operating means connected to one of said bars, as set forth.

2. A sash-fastener, the same comprising,` a box or casing,` in the Window-frame, rack-bars inclosed in said boX or casing having clamps thereon, a cog-wheel adapted for engagement with said bars to move them in opposite directions, a block on one of said rack-bars in the rear of the clamp thereon, and an operatingescrew Working in a hole in said block, whereby movement of said bars and clamps is effected, substantially as set forth.

RICHARD AUGUSTUS GRIFFIN.

IVitnesses MoRToN B. HOWELL, J. M. KERCHEVAL. 

